Shekho, K. K. “Requirements for the Application of Business Operation Reengineering and Its Role in Continuous Improvement ‘A Survey of the Opinions of the Managers at the Hammam Al-Aalil Cement Factory in Ninawa Governorate’”. Humanities Journal of University of Zakho, vol. 7, no. 2, June 2019, pp. 245-62, doi:10.26436/hjuoz.2019.7.2.496.